CN103352186B - Cr-C-Si system Fe-based amorphous alloy strip - Google Patents
Cr-C-Si system Fe-based amorphous alloy strip Download PDFInfo
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- CN103352186B CN103352186B CN201310213224.6A CN201310213224A CN103352186B CN 103352186 B CN103352186 B CN 103352186B CN 201310213224 A CN201310213224 A CN 201310213224A CN 103352186 B CN103352186 B CN 103352186B
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Abstract
The invention discloses a kind of Cr-C-Si system Fe-based amorphous alloy strip, it is characterized in that: its atomic percent forming each element is: Cr4-6, C1-2, Si5-7, As0.5-0.9, Sb0.08-0.12, Sc0.04-0.07, Ta0.12-0.16, Er0.12-0.16, Nd0.08-0.10, Fe surplus.It is similar to conventional amorphous band preparation method that the present invention prepares amorphous band, the application is dopant material based on Cr-C-Si, add other compositions such as Sb, Sc, Ta, optimize thermal treatment process, the obvious stress distribution improving amorphous alloy strips, make amorphous alloy material of the present invention have excellent toughness, good plasticity, excellent soft magnetic performance and good amorphous formation ability, various amorphous thin ribbon annulus material can be widely used in.
Description
Technical field
The present invention relates to magnetic functional material field, particularly a kind of iron-based non-crystalline alloy strip and preparation method thereof of excellent property, can be widely used in various amorphous thin ribbon annulus material.
Background technology
Existing magnetic core of transformer many employings siliconized plate makes, although it has higher saturated magnetic strength (2.0T), medium-frequency loss is large, and energy consumption is high.Non-crystaline amorphous metal starts for transformer amorphous strip annulus material, but its saturated magnetic strength is less than silicon steel, applies limited, therefore, developing a kind of amorphous thin ribbon heat with high saturated magnetic strength and Low Medium Frequency loss, is the research emphasis of transformer amorphous strip annulus material.
Summary of the invention
The object of this invention is to provide a kind of Cr-C-Si system Fe-based amorphous alloy strip and preparation method thereof, it has high saturated magnetic strength and Low Medium Frequency loss.
The invention provides following technical scheme:
A kind of Cr-C-Si system Fe-based amorphous alloy strip, is characterized in that: its atomic percent forming each element is: Cr4-6, C1-2, Si5-7, As0.5-0.9, Sb0.08-0.12, Sc0.04-0.07, Ta0.12-0.16, Er0.12-0.16, Nd0.08-0.10, Fe surplus.
The preparation method of described Cr-C-Si system Fe-based amorphous alloy strip, comprises by each Elements Atom per-cent batching, is heated to 1200-1500 DEG C, melts and be prepared into molten alloy; At CO2 and N
2under mixed atmosphere protection, molten alloy is ejected into rapid quench on copper roller, obtains amorphous alloy ribbon and be wound into annulus; The ratio CO2:N of mixed atmosphere
2=1:2-3; It is characterized in that: be placed in heat treatment furnace by the amorphous thin ribbon annulus obtained, place the additional longitudinal pulsed magnetic field of part of described amorphous thin ribbon annulus in heat treatment furnace, frequency is 4-5Hz, magneticstrength 0.3-0.5T; With 4-6 DEG C/min of speed, when being warming up to 310-330 DEG C, being evacuated to and being less than 5Pa, then applying argon gas is to 0.3-0.4MPa, insulation 20-30 minute; Again with 8-10 DEG C/min of speed, be warming up to 460-490 DEG C, adjustment magneticstrength is 0.7-0.9T, insulation 20-30 minute; Stop heating, slow cooling to after 120-140 DEG C, then with 4-6 DEG C/min of speed, is warming up to 260-290 DEG C, insulation 10-15 minute; Take out from heat treatment furnace, naturally cooling.
It is similar to conventional amorphous band preparation method that the present invention prepares amorphous band, the application is dopant material based on Cr-C-Si, add other compositions such as Sb, Sc, Ta, optimize thermal treatment process, the obvious stress distribution improving amorphous alloy strips, make amorphous alloy material of the present invention have excellent toughness, good plasticity, excellent soft magnetic performance and good amorphous formation ability, various amorphous thin ribbon annulus material can be widely used in.
Embodiment
Cr-C-Si system Fe-based amorphous alloy strip, its atomic percent forming each element is: Cr4, C1, Si7, As0.9, Sb0.12, Sc0.07, Ta0.16, Er0.16, Nd0.10, Fe surplus.
The preparation method of Cr-C-Si system Fe-based amorphous alloy strip, comprises by each Elements Atom per-cent batching, is heated to 1200-1500 DEG C, melts and be prepared into molten alloy; At CO2 and N
2under mixed atmosphere protection, molten alloy is ejected into roller speed for rapid quench on 22-28m/s copper roller, obtains the amorphous thin ribbon that width is 5 ± 0.2mm, thickness is 28 ± 5 μm.Amorphous thin ribbon is wound into annulus, internal diameter 1 centimetre, external diameter 2.5 centimetres; The ratio CO2:N of mixed atmosphere
2=1:2; The present invention carries out following steps successively:
Be placed in heat treatment furnace by the amorphous thin ribbon annulus obtained, place the additional longitudinal pulsed magnetic field of part of described amorphous thin ribbon annulus in heat treatment furnace, frequency is 4-5Hz, magneticstrength 0.3-0.5T; With 4-6 DEG C/min of speed, when being warming up to 310-330 DEG C, being evacuated to and being less than 5Pa, then applying argon gas is to 0.3-0.4MPa, insulation 20-30 minute; Again with 8-10 DEG C/min of speed, be warming up to 460-490 DEG C, adjustment magneticstrength is 0.7-0.9T, insulation 20-30 minute; Stop heating, slow cooling to after 120-140 DEG C, then with 4-6 DEG C/min of speed, is warming up to 260-290 DEG C, insulation 10-15 minute; Take out from heat treatment furnace, naturally cooling.
Performance Detection:
Test condition is magnetic strength 1.1T, and frequency is 50Hz, is designated as P11/50.The saturation induction density Bs of alloy adopts static magnetic performance survey meter, take magnetic field as the saturation induction density Bs of the magnetic induction density under 800A/m as alloy, and the coercivity H of alloy adopts B-H magnetic hysteresis loop tester to record.
Saturation induction density Bs of the present invention is 2.2T, and coercivity H is at 2.9A/m, and loss P11/50 is at 0.20W/kg, and breaking strain ε f is more than 0.028, and ductile-brittle transition temperature TDB is all more than 150 DEG C.
Claims (1)
1. a Cr-C-Si system Fe-based amorphous alloy strip, is characterized in that: its atomic percent forming each element is: Cr4-6, C1-2, Si5-7, As0.5-0.9, Sb0.08-0.12, Sc0.04-0.07, Ta0.12-0.16, Er0.12-0.16, Nd0.08-0.10, Fe surplus;
The preparation method of described Cr-C-Si system Fe-based amorphous alloy strip, comprises by each Elements Atom per-cent batching, is heated to 1200-1500 DEG C, melts and be prepared into molten alloy; At CO
2and N
2under mixed atmosphere protection, molten alloy is ejected into rapid quench on copper roller, obtains amorphous alloy ribbon and be wound into annulus; The ratio CO of mixed atmosphere
2: N
2=1:2-3; Be placed in heat treatment furnace by the amorphous thin ribbon annulus obtained, place the additional longitudinal pulsed magnetic field of part of described amorphous thin ribbon annulus in heat treatment furnace, frequency is 4-5Hz, magneticstrength 0.3-0.5T; With 4-6 DEG C/min of speed, when being warming up to 310-330 DEG C, being evacuated to and being less than 5Pa, then applying argon gas is to 0.3-0.4MPa, insulation 20-30 minute; Again with 8-10 DEG C/min of speed, be warming up to 460-490 DEG C, adjustment magneticstrength is 0.7-0.9T, insulation 20-30 minute; Stop heating, slow cooling to after 120-140 DEG C, then with 4-6 DEG C/min of speed, is warming up to 260-290 DEG C, insulation 10-15 minute; Take out from heat treatment furnace, naturally cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310213224.6A CN103352186B (en) | 2013-05-31 | 2013-05-31 | Cr-C-Si system Fe-based amorphous alloy strip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213224.6A CN103352186B (en) | 2013-05-31 | 2013-05-31 | Cr-C-Si system Fe-based amorphous alloy strip |
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| Publication Number | Publication Date |
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| CN103352186A CN103352186A (en) | 2013-10-16 |
| CN103352186B true CN103352186B (en) | 2016-03-23 |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS56116854A (en) * | 1980-02-21 | 1981-09-12 | Takeshi Masumoto | Noncrystalline alloy having low thermal expansion coefficient |
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